Data storage device



FIG. 1 is a perspective view of a data storage device showing my design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a right-side view thereof; and,

FIG. 7 is a left-side view thereof.

The broken lines show environment, are for illustrative purposes only, and form no part of the claimed design. 

CLAIM The ornamental design for a data storage device, substantially as shown and described. 